UPS Battery Upgrade

Small UPS's have small batteries and short up time , instructions on how to upgrade your uninterpretable power supply to larger capacity batteries , run time up to 5 hours on a 1500 kva UPS


Open ups box with batteries removed

 2 x 60 amp silver calcium lead acid car batteries.

This is a 24 volt ups , so batteries are in series.

UPS Battery Upgrade

All connected up and working , upgraded 2 x 7 amp to 2 x 60 amp
batteries , up-time has gone from 20 minutes to more than 5 hours.
powering a PC , laptop , DSL modem  router.

UPS Battery Upgrade

Batteries are under the desk , so are cool and no vibration

so should last a long time.

Cost: same as buying a new 1500 kva UPS.

A worthwhile upgrade for extended power outages.